Process Deviation is a measure of variance that tells 1) whether a given process differs from an agreed-upon requirement or course of action and 2) how much the variance is. It helps determine if the process’s performance is affected by the variance. It also provides input data for further process analysis and optimization.
Process deviation has the following characteristics:
- Scope. Deviation scope describes process parts that are performed differently and inconsistently with the process’s requirements. Scope also includes deviation time limits.
- Trigger. Deviation trigger explains the reason(s) that forces the process or its parts to be inconsistent and performed differently. Trigger provides valued data for process analysis.
- Solution. Deviation solution describes one or more suggestions obtained as results of process analysis. It tells about possible ways of removing the deviation and reaching process improvement.
Availability of deviations within a process proves the fact that this process is planned and designed with a portion of inaccuracy and incorrectness. But this statement is valid only if the process has a standard deviation that does not exceeded by current deviations. A standard deviation means the expected difference between average performance and actual performance.
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